Some times you may be able to knock them out with a bit of hard wood. Get some plate or square and cut it to the same diameter as the outside of the liner, cut/ drill a hole in the middle and get hold of some threaded bar to make up a puller, a couple of hours spent on that is worth it. A bit of plate and theaded bar is the best way and pull them.Wet liners usually are easier to remove though. Be carefull not to damage the block though. A fabrication shop, may help if you have one in the area, or even a plant hire firm. Some fitters hang onto pullers that they have made up.Martyn

Following on from Martyn ... You may not necessarily need a riggy dige looking puller. I've known a fella to fashion a puller from solid hardwood ... apart from the threaded bar, nuts and washers. Just an angle grinder, drill (and bits,) patience and a bit of time. The bottom of it was two piece, one piece being lathed (well spun up on a drill against the grinder) so it could fit inside the liner and catch the liner with the second beneath it (same diameter) was slid in afterwards to give the strength - it couldn't be one piece as there wasn't room to get it around the crankshaft. It was assembled in situ ... the top wood beam was supported on a couple of blocks on either side of the cylinder.